> For the complete documentation index, see [llms.txt](https://docs.truffle.wtf/truffle-help-center/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.truffle.wtf/truffle-help-center/knowledge-base/signing-transactions-and-messages.md).

# Signing Transactions & Messages

## Module Overview

Within Truffle, you will need to authorize both transactions and signature requests in order to deploy your NFT projects. This module explains what each of these are.

### Signature Request:

A signature request is a request for your approval and is not a transaction. Which means there is no fee required. Looking at the request below:

<img src="/files/sLFMESSc6PmGnRiNG8Sn" alt="" data-size="original">

1. You are being told the request title is and where the request is from:
   1. Title: Signature Request
   2. From: metaplex-hub.vercel.app
2. You are being asked to sign the message:
   1. You can see it’s from Metaplex
   2. You can see it won’t trigger any fees

### Transaction Request

A transaction request is a request which will require a network fee and will show changes in your wallet once the transaction is completed.

![](/files/JnCXs3UhDfmZwv7pkIs5)

1. You are being told what the request title is and where it is from:
   1. Title: Approve Transaction
   2. From: [solana.lido.fi](http://solana.lido.fi)
2. Wallet Changes:
   1. Here you are sending 1.00203 SOL
   2. You are receiving .95385 stSOL
3. Network Fee:
   1. You will pay < 0.00001 SOL